Improvement in propelling-apparatus



Ation.

amat sans @anni (dimite,

Letters Pat-ent No. 98,217, dated December 28, 1869.

IMPROVEMENT IN PROPELLINGAPPARATUS.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern. l

Be it known that I, E. AVERILL, of Sacramento, in the county ot'Sacramento, and State of Oalil'ornia,

have invented a new and improved PropellingAppa` ratus; and I do herebydeclare that the following is a full, elear,"`and exact descriptionthereof', which will enable others skilled inthe art to make and use thesame, reference heilig had to the accompanying drawing, thrilling partot'this specilicatiou.

This invention relates to improvements in feathering paddles for 'boatsand operating devices for the same, having for its object to provide animproved arrangementl ot' means for teathering the paddles, and foroperating a pair for one side ot' a boat alternately, also for reversingthem for propelling in either direclhc drawing represents an elevationot' my improved paddling-device, with some parts broken away. j

On a frame, A, adapted for suspension from the thwarts ot' a vessel, Isuspend a pair of vibrating paddle-supporting arms, B, on axles (J.

These axles are provided with pinions d, and the latter gear withsegmental wheels c, connected to operating levers j, which I prefer toconnect together, as at g, by a connection which admits of freevibration.

To the lower cuds of these arms B, I pivot paddles h, having shoulders ibefore and behind the pivot bolt, projecting slightly above it.

It represents slides, working on ftwo sides of the pzuldle-arms, t'orcand at't, connected by links lm, pivoted to the arms. The links my havetongues n projecting upward trom the centre, by which these slides ma ybc worked up and down on the arms, one moving up when the other movesdown. They are, also secured in any posit-ion by these tongues.

\Vhen the vessel is to he propelled in the direction of the arrow, theslides on the sides in the said direction are adjusted downward, so thatwhen vthe arms move backward to beat the water, `the shoulders 'i willstrike against the ends of' the slides, and be thereby held in the rightposition, as shown at the let't of the drawing, but when moving theother way, the paddle is free to swing backward, so as to be drawnthrough the water elgewise, as shown at the right ot' the drawing.

For propelling the vessel in the other direction,-

the slides k are reversed in position by turning the links m.

This improved propelling-device may be operated vby a crank-shaft,connected in any preferred way with the arms f or the link g, bywhicht'heyare connected, or it may be connected to 'cranks on thepinion-shafts, or the shafts ofthe segmentwheels e, by suitableconnecting-rods.

Having thus described my invention,

What I claim as new, and desire to secure by Letters Patent, isy -1. Thevibrating arms B, hinged paddles and reversible slides k, combined andarranged substantially as specified. l

2. The combination of the vibrating arms B, pinions d, wheels e, andlevers f, substantially as specie tied.

The above specification of my invention, signed by me, this 15th day ofApril,.1Sot).

Witnesses: E. AVER'ILL.

S. Hanns, E. MCGARTY.

